--- 1/draft-ietf-rtgwg-enterprise-pa-multihoming-10.txt 2019-07-03 19:13:08.406410277 -0700 +++ 2/draft-ietf-rtgwg-enterprise-pa-multihoming-11.txt 2019-07-03 19:13:08.526413326 -0700 @@ -2,21 +2,21 @@ Routing Working Group F. Baker Internet-Draft Intended status: Informational C. Bowers Expires: January 4, 2020 Juniper Networks J. Linkova Google July 3, 2019 Enterprise Multihoming using Provider-Assigned IPv6 Addresses without Network Prefix Translation: Requirements and Solutions - draft-ietf-rtgwg-enterprise-pa-multihoming-10 + draft-ietf-rtgwg-enterprise-pa-multihoming-11 Abstract Connecting an enterprise site to multiple ISPs over IPv6 using provider-assigned addresses is difficult without the use of some form of Network Address Translation (NAT). Much has been written on this topic over the last 10 to 15 years, but it still remains a problem without a clearly defined or widely implemented solution. Any multihoming solution without NAT requires hosts at the site to have addresses from each ISP and to select the egress ISP by selecting a @@ -244,27 +244,26 @@ of traffic with external destinations. This document is organized as follows. Section 4 looks in more detail at the enterprise networking environments in which this solution is expected to operate. The discussion of Section 4 uses the concepts of source-prefix-scoped routing advertisements and forwarding tables and provides a description of how source-prefix- scoped routing advertisements are used to generate source-prefix- scoped forwarding tables. Instead, this detailed description is provided in Section 5. Section 6 discusses existing and proposed - mechanisms for hosts to select the default source address applied to - packets. It also discusses the requirements for routing that are - needed to support these enterprise network scenarios and the - mechanisms by which hosts are expected to select source addresses for - new connetions dynamically based on network state. Section 7 - discusses deployment considerations, while Section 8 discusses other - solutions. + mechanisms for hosts to select the default source address to be used + by applications. It also discusses the requirements for routing that + are needed to support these enterprise network scenarios and the + mechanisms by which hosts are expected to update default source + addresses based on network state. Section 7 discusses deployment + considerations, while Section 8 discusses other solutions. 2. Requirements Language The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here. 3. Terminology